What problems should be noticed after the melting of the induction furnace smelting charge

For intermediate frequency induction furnaces using parallel electric furnaces, the following issues should be noted:

(1) At the beginning of melting, since the inductance and capacitance on the line are not quickly matched and the current is unstable, it can only be supplied with low power in a short time. Once the current is stable, it should be converted to full load power. The capacitor should be continually adjusted during the melting process to maintain a high power factor in the helium device. After the furnace is fully melted, the molten steel is superheated to a certain extent, and then the input power is reduced according to the exercise requirements.

(2) The proper melting moment should be controlled. If the melting time is too short, it will cause difficulties in voltage and capacitor selection. If it is too long, it will increase the unhelpful heat loss.

(3) If the fabric is not properly or the furnace contains too much rust, the phenomenon of “bridge” will occur and should be disposed of in time. "Bridge" makes the upper unmelted charge not fall into the molten steel, so that the melting is stagnant, and the overheating of the bottom molten steel easily damages the lining, and the molten steel absorbs a large amount of gas.

(4) Because of the electromagnetic stirring action, the middle part of the molten steel is arched, and the slag often flows to the edge of the crucible and sticks to the furnace wall. Therefore, the slag should be continuously added according to the furnace condition during the melting process.

For more information about the intermediate frequency electric furnace, diathermy furnace and induction furnace of Kunshan Wantai Electric Furnace Co., Ltd., please contact Xiaobian.

Medium frequency electric furnace, diathermic furnace, induction